Determination of parameter values for sensory substitution devices

A sensory substitution system for representing intensity levels indicative of a first type of sense of a subject by parameter values for a different second type of sense of the subject, the sensory substitution system comprising:

• a sensory output device;
• and
• a processor to perform the instructions from the memory communicated via the bus:
• to determine a first parameter value for the second type of sense representing a first intensity level indicative of the first type of sense;
• and
• to determine a second parameter value for the second type of sense representing a second intensity level indicative of the first type of sense with reference to the first parameter value;
• to provide the second parameter value as input to the sensory output device;
• wherein the first parameter value differs from the second parameter value by at least one Just-Noticeable-Difference (JND) of the second type of sense of the subject.

A sensory substitution system for translating intensity levels indicative of visual information to intensity levels indicative of tactile perception of a subject, comprising:

• a sensory information capture device to capture the intensity levels indicative of visual information of the subject;
• an array of stimulation generation members;
• and
• a processor
• to determine a first parameter value for tactile perception representing a first intensity level indicative of visual information;
• and
• to determine a second parameter value for tactile perception representing a second intensity level indicative of visual information with reference to the first parameter value;
• to provide the second parameter value as input to an array of stimulation generation members;
• wherein the first parameter value differs from the second parameter value by at least one Just-Noticeable-Difference (JND) of tactile perception of the subject.